Here is a free course how to use Blocks in AutoCAD

Objectives:

What Are Blocks?

A block definition is a named imprint for a selection set of objects.

  • when this imprint is stored in the current drawing it can be easily 
inserted any number of times at various scales and orientations.
  • an inserted block is one object that can be selected by selecting any part of the inserted block.
  • 
The most common use of blocks is for drawing symbols.
  • you can create your own symbol library or purchase libraries of 
standard drafting & design symbols.
  • typical symbols from various industries are shown below.

Faster Drawings

Use blocks for drawing symbols to minimize disk space and maximize AutoCAD performance.

  • each additional block insert requires only a small amount of additional storage space compared to multiple copies of objects.

Less Work

  • You can draw something once and use it many times as a block insert to avoid extra work and save time.

Automatic Update

  • All insertions of a block are automatically updated when you modify a block definition.

Standard Dwgs

  • It is easy to standardize drawings and have a consistent approach when everyone in an office uses the same symbol library for blocks.
How to use Spell Checking - AutoCAD Tutorial 62
How to make Block Definitions - AutoCAD Tutorial 64